Product shell, mold and system

Abstract

The utility model relates to the technical field of product injection molding, and discloses a product shell, a mold and a system, the product shell comprises a feeding plane and a material injection molding surface, the feeding plane is arranged on the top surface of the product shell, the feeding plane is provided with a pouring position, the material injection molding surface extends along the height direction of the product shell, the material injection molding surface is positioned below the feeding plane, and the pouring position is positioned below the feeding plane. The top of the injection molding face is connected with the side, away from the center of the product shell, of the feeding plane, and the injection molding face and the feeding plane are arranged at an angle. According to the product shell, during injection molding, materials flow into the feeding plane along the injection position, when the materials flow to the tail end of the feeding plane, the materials only flow to the injection molding face below along the tail end of the feeding plane, material flow division is avoided, and therefore injection turbulent flow is reduced, the materials stably flow to the injection molding face, and the injection molding efficiency is improved. The defect that injection lines are formed on the surface of an injection molding surface due to injection turbulence is avoided, and the quality and the appearance attractiveness of a product shell are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of product injection molding, in particular to a product shell, a mold and a system. Background Art

[0002] As the appearance quality of home appliance products becomes increasingly important, the aesthetics and user experience of the product casing have become a focus. During the injection molding process of home appliance casings, jetting marks are a common defect that seriously affects the product's appearance quality and mechanical properties. The causes of jetting marks vary, including improper setting of injection molding process parameters (such as injection speed, injection temperature, and pressure) and improper injection gate design.

[0003] The plane where the gate of existing products is located and the cross-section of the product's appearance molding surface are T-shaped. During glue injection, the glue flows along the gate position to the product's appearance molding surface. When it flows to the appearance molding surface, it is divided (flowing upward and downward at the same time), resulting in injection turbulence, which in turn causes the formation of "sunflower"-shaped spray patterns on the outer surface of the appearance molding surface, affecting the appearance and quality of the product. Utility Model Content

[0004] In view of this, the present invention provides a product housing, mold and system to solve the problem that during injection molding of existing product housings, spray marks such as "sunflowers" are formed on the outer surface of the appearance molding surface, affecting the appearance and quality of the product.

[0005] The first aspect of the present utility model provides a product shell, including a feed plane and an injection molding surface, wherein the feed plane is arranged on the top surface of the product shell, the feed plane is provided with a pouring position, the injection molding surface extends along the height direction of the product shell, the injection molding surface is located below the feed plane, the top of the injection molding surface is connected to the side of the feed plane away from the center of the product shell, and the injection molding surface is arranged at an angle to the feed plane.

[0006] Beneficial effect: The product shell of the present application sets the feed plane on the top surface of the product shell, and the injection molding surface is located below the feed plane. The top of the injection molding surface is connected to the side of the feed plane away from the center of the product shell. During injection molding, the material flows into the feed plane along the pouring position. When the material flows to the end of the feed plane, it will only flow along the end of the feed plane to the injection molding surface below, and no material diversion will occur, thereby reducing the injection turbulence and making the material flow smoothly to the injection molding surface, avoiding the defect of spray marks on the surface of the injection molding surface due to injection turbulence, and ensuring the quality and appearance of the product shell.

[0007] In some embodiments, the feed plane is provided with a sink, and the pouring position is provided in the sink.

[0008] Beneficial effect: By setting a sink groove on the feed plane and setting the pouring position on the sink groove, it can be avoided that the residual material at the pouring position protrudes from the surface of the feed plane after the injection is completed, which affects the later assembly of the product shell with other structures.

[0009] In some embodiments, the pouring position is set at the center of the sink.

[0010] Beneficial effect: By arranging the gate at the center of the sink, it is easy to locate the pouring position.

[0011] In some embodiments, the angle α between the feed plane and the injection molding surface is set to: 60°≤α≤120°.

[0012] Beneficial effect: By setting the angle α between the feed plane and the injection molding surface within a reasonable range, the product injection operation requirements are met and the molding quality of the product is ensured.

[0013] In some embodiments, the relationship between the thickness H1 of the feed plane and the thickness H2 of the injection molding surface is: H1 = 0.5H2 ~ 0.7H2.

[0014] Beneficial effect: By reasonably setting the relationship between the thickness H1 of the feed plane and the thickness H2 of the injection molding surface, on the one hand, the shrinkage of the injection molding surface can be avoided; on the other hand, the problem of spray marks caused by excessive changes in the material flow speed during injection due to a large difference in the thickness between the two can be prevented.

[0015] In some embodiments, a distance L from the pouring position to a side of the injection molding surface away from the feeding plane is: L=8 mm to 12 mm.

[0016] Beneficial effect: By setting the distance L from the pouring position to the side of the injection molding surface away from the feed plane within a reasonable range, it is possible to avoid the situation where the pouring position is too close to the injection molding surface, resulting in the injection jet producing spray marks on the injection molding surface, and it is also possible to avoid the situation where the pouring position is too far from the injection molding surface, resulting in insufficient injection speed affecting the injection.

[0017] In some embodiments, the injection molding surface is provided in an annular shape, and at least two feeding planes are provided, and the at least two feeding planes are spaced apart along the circumference of the injection molding surface.

[0018] Beneficial effect: By setting at least two feeding planes, and at least two feeding planes being spaced apart along the circumference of the injection molding surface, materials can be fed and injected simultaneously through at least two feeding planes, thereby improving the injection efficiency and speeding up the product manufacturing cycle.

[0019] In some embodiments, the cross-sections of the feed plane and the injection molding surface are L-shaped.

[0020] Beneficial effect: By setting the cross-section of the feeding plane and the injection molding surface to be L-shaped, the material flow between the feeding plane and the injection molding surface is smoother.

[0021] The second aspect of the present invention further provides a mold, which is used for injecting material to form the product shell of the present invention. The mold is provided with an injection port, and the injection port is correspondingly connected to the injection position of the product shell.

[0022] Beneficial effects: Since the mold of the present invention is used for injecting material to form the product shell of the present invention, it has the same technical effects as the product shell of the present invention, and will not be described in detail here.

[0023] The third aspect of the present invention also provides a system, which includes an injection machine and the mold of the present invention. The injection machine has an injection head, which is used to communicate with the injection port of the mold of the present invention to inject material into the mold cavity of the mold.

[0024] Beneficial effects: Since the system of the present invention includes the mold of the present invention, the system of the present invention has the same technical effects as the mold, which will not be described in detail here.

[0025] In some embodiments, based on the fact that at least two injection ports and at least two casting positions are respectively provided, the system further includes a diversion pipeline, the diversion pipeline includes at least two branch pipelines that are connected to each other, at least two branch pipelines and at least two injection ports are provided in one-to-one correspondence, and the injection head is connected to one of the diversion pipelines.

[0026] Beneficial effect: By setting up a diversion pipeline, and setting at least two branch pipelines and at least two injection ports that are connected to each other in a one-to-one correspondence, when injecting material, the at least two branch pipelines can be injected at the same time through the injection head, so that the material flows into the at least two injection ports at the same time through the at least two branch pipelines to realize injection, thereby realizing that one injection head can inject material into multiple injection ports at the same time, and there is no need to set up multiple injection heads to inject material into the injection ports one by one, which improves the injection efficiency and saves the setting cost.

[0027] In some embodiments, the branch pipelines are connected via a connecting portion, and the injection head is disposed at the connecting portion.

[0028] Beneficial effect: The branch pipelines are connected through the connecting part, and the injection head is connected to the connecting part. When injecting material, the material first enters the connecting part, flows through the connecting part, and then flows into each branch pipeline to realize injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a structural diagram of an existing product shell;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of a product housing according to one embodiment of the present utility model;

[0032] Figure 3 This is a cross-sectional view of a product housing according to an embodiment of the present invention;

[0033] Figure 4 A top view of a product housing according to an embodiment of the present invention;

[0034] Figure 5 A partial cross-sectional view of a product housing according to an embodiment of the present invention;

[0035] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at A in the middle;

[0036] Figure 7 This is a schematic diagram of the dimensions of a product housing according to an embodiment of the present invention;

[0037] Figure 8 This is a schematic structural diagram of a system according to an embodiment of the present invention.

[0038] Description of Reference Numerals

[0039] 100, glue inlet surface; 101, gate position; 200, exterior molding surface;

[0040] 1. Feeding plane; 11. Pouring position; 12. Sink;

[0041] 2. Injection molding surface;

[0042] 3. Mold; 31. Injection port;

[0043] 4. Diversion pipeline; 41. Branch pipeline; 42. Connection part. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0046] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0047] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0048] Related technology introduction: Figure 1 As shown, the existing injection molding product has a molding surface 100 that is lower than the top surface of the product, a gate position 101 is set on the molding surface 100, and the cross-section of the molding surface 100 and the appearance molding surface 200 forms a T-shape. During injection molding, the rubber flows into the molding surface 100 along the gate position 101 and flows toward the appearance molding surface 200 through the molding surface 100. When it flows to the appearance molding surface 200, it is divided and the rubber flows to the upper and lower sides of the appearance molding surface 200 at the same time. At the same time, a throttling thinning portion is set on the molding surface 100 to increase the flow pressure of the rubber and improve the flow speed of the rubber. However, the injection turbulence and the sudden change of the rubber speed are likely to form a "sunflower"-shaped spray pattern on the outer surface of the appearance molding surface 200 ( Figure 1 The spray marks will reduce the strength of the appearance molding surface 200 and also affect the appearance of the appearance molding surface 200.

[0049] Based on the above problems, the present application provides a product housing to overcome the above defects.

[0050] The following combination Figures 2 to 8 , describing the embodiments of the present utility model.

[0051] like Figure 2 and Figure 3 As shown, according to an embodiment of the present utility model, on the one hand, a product shell is disclosed, comprising a feed plane 1 and an injection molding surface 2, wherein the feed plane 1 is arranged on the top surface of the product shell, the feed plane 1 is provided with a pouring position 11, the injection molding surface 2 extends along the height direction of the product shell, the injection molding surface 2 is located below the feed plane 1, the top of the injection molding surface 2 is connected to the side of the feed plane 1 away from the center of the product shell, and the injection molding surface 2 is arranged at an angle to the feed plane 1.

[0052] The product shell of the present application sets the feed plane 1 on the top surface of the product shell, and the injection molding surface 2 is located below the feed plane 1, and the top of the injection molding surface 2 is connected to the side of the feed plane 1 away from the center of the product shell. During injection molding, the material flows into the feed plane 1 along the pouring position 11. When the material flows to the end of the feed plane 1, it will only flow along the end of the feed plane 1 to the injection molding surface 2 below, and no material diversion will occur, thereby reducing the injection turbulence and making the material flow smoothly to the injection molding surface 2, avoiding the defect of spray marks formed on the surface of the injection molding surface 2 due to injection turbulence, thereby ensuring the quality and appearance of the product shell.

[0053] It is understandable that the presence of injection marks will also affect the strength of the injection molding surface 2, resulting in the need to thicken the thickness of the injection molding surface 2 under the same strength. The design of this application avoids the formation of injection marks and can reduce the thickness of the injection molding surface 2 under the same strength requirements, thereby achieving the purpose of saving materials and reducing production costs.

[0054] It should be noted that the material can be plastic, metal, etc. When the material is plastic, the product shell is a plastic shell, and when the material is metal, the product shell is a metal shell. Therefore, the specific selection is related to the material of the product shell. In this embodiment, the material is plastic as an example for exemplary description.

[0055] For example, the product housing may be a housing of a household appliance, such as a housing of a heater, a housing of a humidifier, etc., and this embodiment does not impose any specific limitation.

[0056] like Figures 4 to 6 As shown, in some embodiments, the feed plane 1 is provided with a sink 12 , and the pouring position 11 is provided in the sink 12 .

[0057] By setting a trough 12 on the feed plane 1 and setting the pouring position 11 on the trough 12, it can be avoided that residual material at the pouring position 11 protrudes from the surface of the feed plane 1 after the injection is completed, thereby affecting the later assembly of the product shell with other structures.

[0058] It should be noted that the remaining material at the pouring position 11 needs to be removed after the injection is completed. It can be removed manually or with the help of tools, but residual material will remain on the feed plane 1. The residual material protrudes from the feed plane 1, which will cause the surface of the product shell to be uneven, thereby affecting the subsequent assembly of the product shell. The present application sets a sink 12 on the feed plane 1, so that the residual material at the pouring position 11 is located in the sink 12, thereby not affecting the subsequent assembly of the product shell.

[0059] It is understandable that the depth of the trough 12 is greater than or equal to the thickness of the remaining material at the pouring position 11 .

[0060] This arrangement allows the remaining material at the pouring position 11 to be completely located in the trough 12 without protruding from the feed plane 1 .

[0061] It should be noted that the depth of the sink 12 can be designed based on experience or experiments, and is not specifically limited in this embodiment.

[0062] For example, when the thickness of the residual material at the pouring position 11 is 2 mm, the depth of the trough 12 can be set to 2 mm, 3 mm, etc., so that the 2 mm residual material is completely located inside the trough 12 and does not protrude from the feeding plane 1.

[0063] It should be noted that the depth of the trough 12 is less than the thickness of the feed plane 1, that is, the trough 12 does not penetrate the feed plane 1, so that the material can flow along the feed plane 1 to the injection molding surface 2 after entering through the pouring position 11, ensuring normal injection operation.

[0064] In terms of specific shape, the sink 12 can be circular, elliptical or geometric, and can be set according to specific needs.

[0065] In this embodiment, the sink 12 is set to be circular as an example for illustrative description.

[0066] The diameter of the trough 12 should be greater than or equal to the diameter of the pouring position 11, so that the material can flow into the trough 12 along the pouring position 11 and can flow to the feeding plane 1 and the injection molding surface 2 in time, and will not overflow during injection due to the diameter of the trough 12 being too small, resulting in material waste.

[0067] In some embodiments, the pouring position 11 is disposed at the center of the sink 12 .

[0068] By arranging the pouring position 11 at the center of the sink 12, the positioning of the pouring position 11 is facilitated, and the difficulty of assembly is reduced.

[0069] like Figure 7 As shown, in some embodiments, the angle α between the feed plane 1 and the injection molding surface 2 is set to: 60°≤α≤120°.

[0070] By setting the angle α between the feed plane 1 and the injection molding surface 2 within a reasonable range, the product injection operation requirements can be met and the molding quality of the product can be ensured.

[0071] Illustratively, the angle α between the feed plane 1 and the injection molding surface 2 can be set to 60°, 70°, 80°, 90°, 100°, 110°, 120°, etc., and can be set specifically as needed, and this embodiment does not impose any specific restrictions.

[0072] For ease of description, this embodiment is described by taking the angle α between the feed plane 1 and the injection molding surface 2 as 90° as an example.

[0073] In some embodiments, the relationship between the thickness H1 of the feed plane 1 and the thickness H2 of the injection molding surface 2 is: H1 = 0.5H2 ~ 0.7H2.

[0074] By reasonably setting the relationship between the thickness H1 of the feed plane 1 and the thickness H2 of the injection molding surface 2, on the one hand, the shrinkage of the injection molding surface 2 can be avoided, and on the other hand, the problem of spray marks caused by excessive changes in the material flow speed during injection due to a large difference in the thickness between the two can be prevented.

[0075] For example, the thickness H1 of the feed plane 1 can be specifically set to 0.5H2, 0.6H2, 0.7H2, etc., and can be set according to specific needs. This embodiment does not impose any specific limitation.

[0076] It should be noted that the feed plane 1 is set to have a constant thickness.

[0077] The feed plane 1 is set to have a constant thickness. By limiting the relationship between the thickness H1 of the feed plane 1 and the thickness H2 of the injection molding surface 2, the flow rate of the injection material under the same injection pressure is controlled without setting a thickness reduction portion on the feed plane 1. This allows the material to flow smoothly along the feed plane 1 and avoids the formation of spray marks on the surface of the injection molding surface 2 due to a sudden change in speed.

[0078] In some embodiments, the distance L from the pouring position 11 to the side of the injection molding surface 2 away from the feeding plane 1 is: L=8mm-12mm.

[0079] By setting the distance L from the pouring position 11 to the side of the injection molding surface 2 away from the feed plane 1 within a reasonable range, it is possible to avoid the situation where the pouring position 11 is too close to the injection molding surface 2, resulting in the injection jet producing spray marks on the injection molding surface 2, and it is also possible to avoid the situation where the pouring position 11 is too far from the injection molding surface 2, resulting in insufficient injection speed affecting the injection.

[0080] For example, the distance L from the pouring position 11 to the side of the injection molding surface 2 away from the feed plane 1 can be set to 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, etc., which can be set according to specific needs and is not specifically limited in this embodiment.

[0081] In some embodiments, the injection molding surface 2 is provided in an annular shape, and at least two feeding planes 1 are provided, and the at least two feeding planes 1 are spaced apart along the circumference of the injection molding surface 2 .

[0082] By setting at least two feed planes 1, and at least two feed planes 1 are set at intervals along the circumference of the injection molding surface 2, feeding and injection can be carried out simultaneously through at least two feed planes 1, thereby improving injection efficiency and accelerating product manufacturing cycle.

[0083] It is understandable that the number of feed planes 1 is related to the shape and size of the injection molding surface 2. For example, the larger the size of the injection molding surface 2, the more feed planes 1 can be set to improve the injection efficiency of the injection molding surface 2.

[0084] In this embodiment, the number of the feeding planes 1 is set to three, but is not limited thereto. For example, in other embodiments, the number of the feeding planes 1 can be set to two, four, etc. as needed.

[0085] In some embodiments, the cross-sections of the feeding plane 1 and the injection molding surface 2 are L-shaped.

[0086] By setting the cross-sections of the feeding plane 1 and the injection molding surface 2 to be L-shaped, the material flow between the feeding plane 1 and the injection molding surface 2 is made smoother.

[0087] It should be noted that the setting of the feeding plane 1 needs to avoid the assembly position of the product shell to prevent the setting of the feeding plane 1 from affecting the assembly of the product shell.

[0088] And under the premise of satisfying the injection and feeding requirements, the size of the feeding plane 1 is set as small as possible.

[0089] According to an embodiment of the present invention, on the other hand, a mold is also disclosed. The mold 3 is used for injecting material to form the product shell of the present invention. The mold 3 is provided with an injection port 31, and the injection port 31 is correspondingly connected to the injection position 11 of the product shell.

[0090] Since the mold 3 of the present invention is used for injecting material to form the product shell of the present invention, it has the same technical effect as the product shell of the present invention, and will not be described in detail here.

[0091] It should be noted that the mold 3 has a mold cavity, and the shape and size of the mold cavity are matched with the shape and size of the product shell. By injecting material into the mold cavity of the mold 3 and opening the mold after the material cools, the product shell can be obtained.

[0092] According to an embodiment of the present invention, on the other hand, a system is disclosed, which includes an injection machine and a mold 3 of an embodiment of the present invention, wherein the injection machine has an injection head, which is used to communicate with the injection port 31 of the mold 3 of the embodiment of the present invention to inject material into the mold cavity of the mold 3.

[0093] Since the system of the present invention includes the mold 3 of the present invention, the system of the present invention has the same technical effects as the mold 3, which will not be described in detail here.

[0094] like Figure 8 As shown, in some embodiments, based on the fact that at least two injection ports 31 and casting positions 11 are respectively provided, the system also includes a diversion pipeline 4, the diversion pipeline 4 includes at least two branch pipelines 41 that are connected to each other, and the at least two branch pipelines 41 and the at least two injection ports 31 are provided in a one-to-one correspondence, and the injection head is connected to one of the diversion pipelines 4.

[0095] By setting up a diversion pipeline 4, and setting up at least two branch pipelines 41 and at least two injection ports 31 in a one-to-one correspondence, when injecting material, the at least two branch pipelines 41 can be injected at the same time through the injection head, so that the material flows into the at least two injection ports 31 at the same time through the at least two branch pipelines 41 to realize injection, thereby realizing that one injection head can inject material into multiple injection ports 31 at the same time, and there is no need to set up multiple injection heads to inject material into the injection ports 31 one by one, which improves the injection efficiency and saves the setting cost.

[0096] like Figure 8 As shown, the mold 3 includes a top mold and a bottom mold, and the injection port 31 is provided on the top mold.

[0097] In some embodiments, the branch pipes 41 are connected through a connection portion 42 , and the injection head is disposed at the connection portion 42 .

[0098] The branch pipelines 41 are connected through the connection part 42, and the injection head is connected to the connection part 42. When injecting material, the material first enters the connection part 42, is divided by the connection part 42, and then flows into each branch pipeline 41 to realize injection.

[0099] Specifically, the connecting portion 42 is a circular area, and the diameter of the connecting portion 42 is larger than the diameter of the branch pipe 41. Of course, in other embodiments, the shape and size of the connecting portion 42 can be set as needed and are not limited to the solution of this embodiment.

[0100] It should be noted that, in this embodiment, three feed planes 1 are provided, and correspondingly, three pouring positions 11 are provided. Therefore, three injection ports 31 are also provided and are connected to the three pouring positions 11 in a one-to-one manner, and three branch pipes 41 are also provided, and the three branch pipes 41 are connected to the three injection ports 31 in a one-to-one manner.

[0101] It should be noted that the number of injection ports 31 and branch pipes 41 can be adjusted according to the number of pouring positions 11 and is not limited to this embodiment. For example, when the number of pouring positions 11 is set to two, the number of injection ports 31 and branch pipes 41 is also adjusted to two accordingly.

[0102] To facilitate understanding of the system of this embodiment, Figure 2 To the attached Figure 8 , the system usage process is introduced as follows:

[0103] First, the three branch pipes 41 of the shunt pipe 4 are arranged in a one-to-one correspondence with the three injection ports 31 of the mold 3, and then the injection head of the injection machine is connected to the connection part 42 of the shunt pipe 4;

[0104] The injection machine is used to start injecting material. The material flows into the connecting part 42 through the injection head, and flows to the three injection ports 31 through the three branch pipes 41. The material flows into the three casting positions 11 through the three injection ports 31. The material flows in the mold cavity of the mold 3, specifically flows to the injection molding surface 2 below through the feed plane 1. After the material is cooled, the mold 3 is opened and the product shell is taken out. Since the feed plane 1 is not provided with a throttling and thinning area, the material flow to the injection molding surface 2 will not be diverted, so no spray marks will appear on the outer surface of the injection molding surface 2.

[0105] Remove the casting position 11 on the product shell, and the remaining material at the casting position 11 is located in the sink 12 of the feed plane 1 to prevent the remaining material from protruding from the feed plane 1, causing the surface of the product shell to be uneven, thereby affecting the later assembly of the product shell with other components.

[0106] In summary, the product housing, mold, and system of this application have the following advantages:

[0107] (1) No material diversion occurs during injection, thereby reducing injection turbulence and allowing the material to flow smoothly toward the injection molding surface 2, thus avoiding the defect of jetting marks on the surface of the injection molding surface 2 caused by injection turbulence;

[0108] (2) The feed plane 1 is set to have a constant thickness and no throttling thinning area is set, so that the material flows smoothly along the feed plane 1, avoiding the situation where the injection pattern is formed on the surface of the injection molding surface 2 due to a sudden change in speed.

[0109] (3) The design of the present application avoids the formation of spray marks, which can not only ensure the aesthetic appearance of the product shell, but also reduce the thickness of the injection molding surface 2 under the same strength requirements, thereby achieving the purpose of saving materials and reducing production costs.

[0110] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by this application.

Claims

1. A product shell, characterized in that: include: A feeding plane (1) is provided on the top surface of the product shell, and a pouring position (11) is provided on the feeding plane (1); An injection molding surface (2) extends along the height direction of the product shell, the injection molding surface (2) is located below the feed plane (1), the top of the injection molding surface (2) is connected to a side of the feed plane (1) away from the center of the product shell, and the injection molding surface (2) is set at an angle to the feed plane (1).

2. The product housing according to claim 1, characterized in that: The feed plane (1) is provided with a trough (12), and the pouring position (11) is provided in the trough (12).

3. The product housing according to claim 2, characterized in that: The pouring position (11) is arranged at the center of the trough (12).

4. The product housing according to any one of claims 1 to 3, characterized in that: The angle α between the feed plane (1) and the injection molding surface (2) is set to: 60°≤α≤120°.

5. The product housing according to any one of claims 1 to 3, characterized in that: The relationship between the thickness H1 of the feed plane (1) and the thickness H2 of the injection molding surface (2) is: H1 = 0.5H2 to 0.7H2.

6. The product housing according to any one of claims 1 to 3, characterized in that: The distance L from the pouring position (11) to the side of the injection molding surface (2) away from the feed plane (1) is: L=8mm-12mm.

7. The product housing according to any one of claims 1 to 3, characterized in that: The injection molding surface (2) is arranged in an annular shape, and at least two feed planes (1) are provided, and at least two feed planes (1) are arranged at intervals along the circumference of the injection molding surface (2).

8. The product housing according to any one of claims 1 to 3, characterized in that: The cross-sections of the feed plane (1) and the injection molding surface (2) are L-shaped.

9. A mold, characterized in that: The mold (3) is used for injecting material to form the product shell according to any one of claims 1 to 8, and the mold (3) is provided with an injection port (31), and the injection port (31) is correspondingly connected to the injection position (11) of the product shell.

10. A system, characterized in that: The system comprises: The injection machine has an injection head, The mold (3) described in claim 9, wherein the injection head is used to communicate with the injection port (31) of the mold (3) to inject material into the mold cavity of the mold (3).

11. The system according to claim 10, wherein: Based on the fact that at least two injection ports (31) and at least two pouring positions (11) are provided respectively, the system further comprises a shunt pipeline (4), the shunt pipeline (4) comprises at least two branch pipelines (41) communicating with each other, at least two branch pipelines (41) and at least two injection ports (31) are provided in a one-to-one correspondence, and the injection head is communicated with one of the shunt pipelines (4).

12. The system according to claim 11, wherein: The branch pipelines (41) are connected to each other via a connecting portion (42), and the injection head is arranged at the connecting portion (42).

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